On the rotating elastic–plastic solid disks of variable thickness having concave profiles

Eraslan, Ahmet N.; Orçan, Yusuf

doi:10.1016/s0020-7403(02)00038-3

Cited by 65 publications

(24 citation statements)

References 13 publications

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“…Guven [17] obtained an exact solution for the rotating elastoplastic hyperbolic disk that is mounted on a rigid solid shaft. Eraslan and Orcan [18] solved the same problem analytically for the exponential concave profiles of a solid disk. Eraslan and Argeso [19] developed a computational model for rotating nonlinearly hardening solid disk of variable thickness.…”

Section: Rotating Cylindrical Elements Without Thermal Loadingmentioning

confidence: 99%

Effect of a temperature cycle on a rotating elastic–plastic shaft

2008

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Section: Rotating Cylindrical Elements Without Thermal Loadingmentioning

confidence: 99%

Effect of a temperature cycle on a rotating elastic–plastic shaft

2008

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“…Theoretical research into the behavior of such structures has received appreciable focus, and the topic has been considered in many standard and advanced textbooks [1][2][3][4], which mostly concentrate on the analytical method andnite element simulations [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Furthermore, to the knowledge of the authors, no research work has been presented on the e ects of ductile damage on the plastic behavior and limit angular velocity of a rotating disk.…”

Section: Introductionmentioning

confidence: 99%

“…They also investigated the elastic-plastic deformation of solid disks with variable thickness in concave form [11]. In these works, it was shown that the deformation behavior of a solid disk with varying thickness is di erent from that of a disk with constant thickness, in such a way that three di erent stages of elasticplastic deformation occur.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ductile Damage on Plastic Behavior of a Rotating Disk with Variable Thickness Subjected to Mechanical Loading

Alashti

Jafari

2016

Scientia Iranica

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Abstract. In this work, the e ect of ductile damage on distributions of strain and displacement components in rotating annular disks with variable thicknesses under plane stress conditions is studied using semi-analytical and nite element methods. The plastic behavior of disks under mechanical loading is studied on the basis of continuum damage mechanics. The semi-analytical method is developed using Prandtl-Reuss relations, the method of successive elastic solution, and the damage plasticity model proposed by Xue and Wierzbicki that is also used for nite element analysis. The proposed damage plasticity model incorporates the e ects of both hydrostatic stress and the Lode angle to de ne the fracture envelope. The results obtained by the semi-analytical method are then compared with the results obtained by the nite element method. Numerical calculations for di erent ranges of thickness parameter, with and without damage e ects, are carried out and the results are compared. It is shown that the damage has a signi cant e ect on values of maximum von Mises stress and the limit angular velocity of annular disks. Results of the present study con rm the credibility of the proposed model in predicting the damage limit angular velocity, and can be extended to other states of loading.

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“…In this context, numerical and analytical investigations have been extensively used to predict the deformation, failure, and stress and strain fields in a uniform rotating disk under different loading conditions (e.g., see Refs. [1][2][3][4][5][6][7]). The stress field in a uniform rotating disk-under elastic or elasto-plastic loading condition-is not uniform and the maximum stress occurs at the center of the disk.…”

Section: Introductionmentioning

confidence: 99%

Elasto-Plastic Stresses in a Functionally Graded Rotating Disk

Jahromi

Nayeb-Hashemi

Vaziri

2012

Journal of Engineering Materials and Technology

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A numerical method based on the extension of the variable material property method was developed to obtain the elasto-plastic stress field in a functionally graded (FG) rotating disk. The method was applied to estimate the stress field in a metal-ceramic functionally graded solid disk. To establish the validity of the proposed method, results were compared with finite element results. Unlike uniform rotating disks, where yielding starts from the disk center, plasticity in FG disks can originate at any point. The effect of different metalceramic grading patterns as well as the relative elastic moduli and densities of the ceramic and metallic constituents on the developed stresses were studied. Reinforcement of a metal disk with ceramic particles, in both elastic and plastic regimes, can significantly influence the mechanical response of the disk such as the stress distribution and the critical angular velocities corresponding to the onset of plasticity in the disk and plastic disk. Disks with increasing ceramic content from inner to outer radius showed a more uniform von Mises stress distribution for a fixed value of total ceramic content. In contrast, disks with decreasing ceramic content from inner to outer radius had the lowest outer edge displacement for a fixed value of total ceramic content.

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On the rotating elastic–plastic solid disks of variable thickness having concave profiles

Cited by 65 publications

References 13 publications

Effect of a temperature cycle on a rotating elastic–plastic shaft

Effect of a temperature cycle on a rotating elastic–plastic shaft

The Effect of Ductile Damage on Plastic Behavior of a Rotating Disk with Variable Thickness Subjected to Mechanical Loading

Elasto-Plastic Stresses in a Functionally Graded Rotating Disk

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